Header header # Includes measurement timestamp and coordinate frame.

geometry_msgs/Pose2D velocity # Velocity
# Row-major representation of the 3x3 coviriance matrix.
# Order of parameters: (v_x, v_y, v_theta)
float64[9] covariance 

bool has_radar_egomotion # Whether radar egomotion was successfully computed.
                         # 0: failed; velocity computed from extrapolation.
                         # 1: success
